I'm trying to create a new skill and I'm following the step-by-step on the larian docs website. However, when I got to the point where I need to assign the root template to a skillbook, the engine automatically closes.

[Linked Image]

Whenever I click on the RootTemplate option that should open the pop up box (as on the picture), my engine stops working and a windows message shows up saying the program will close. This is what shows up and stops me from using the Engine (as soon as I select any option on that box, the engine closes):

[Linked Image]